CN114318954A - Mold clamping method for molding die and molding apparatus - Google Patents
Mold clamping method for molding die and molding apparatus Download PDFInfo
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- CN114318954A CN114318954A CN202111676786.5A CN202111676786A CN114318954A CN 114318954 A CN114318954 A CN 114318954A CN 202111676786 A CN202111676786 A CN 202111676786A CN 114318954 A CN114318954 A CN 114318954A
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- 238000000034 method Methods 0.000 title claims abstract description 70
- 238000000465 moulding Methods 0.000 title claims abstract description 29
- 230000008569 process Effects 0.000 claims abstract description 22
- 230000003993 interaction Effects 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 7
- 230000033001 locomotion Effects 0.000 claims description 5
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 claims description 3
- 238000009740 moulding (composite fabrication) Methods 0.000 description 26
- 229920001131 Pulp (paper) Polymers 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000012636 effector Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The invention provides a mold closing method and a molding device for a molding mold, wherein the mold closing method for the molding mold comprises the following steps: obtaining a preset torque T of die assembly0(ii) a Acquiring a mold closing starting signal, closing the mold, and acquiring a real-time torque T in the mold closing process1And apply a real-time torque T1With a predetermined torque T0Comparing; according to real-time torque T1With a predetermined torque T0And adjusting the mold clamping speed in the mold clamping process according to the comparison result. Through the technical scheme provided by the invention, the technical problem of low mold closing efficiency of the forming mold in the prior art can be solved.
Description
Technical Field
The invention relates to the technical field of forming devices, in particular to a mold closing method and a forming device of a forming mold.
Background
At present, paper pulp molding is a three-dimensional papermaking technology, paper pulp is used as a raw material, the paper pulp is generally obtained by preparing, forming, drying and shaping pulp, and the paper pulp molding has the advantages of degradability, recoverability, environmental friendliness and the like. The paper plastic has the advantages of cheap and easily-obtained raw materials, no pollution in the production process, good shock resistance, buffering, air permeability and antistatic performance of products, recoverability, easy degradation and the like, thereby having wide application prospect in the packaging field of electronic products, daily chemical products, fresh products and the like.
However, in the production of paper pulp molding, the mold power source on the traditional shaping mechanism is hydraulic, the cylinder diameter of a hydraulic rod and the contact area of a mold determine the pressure intensity, the pressure intensity required by various products cannot be compatible, the travel speed per se is low, the overall time efficiency is low, the pressure cannot be accurately controlled, and the space occupation is large due to the matched hydraulic station.
Disclosure of Invention
The invention mainly aims to provide a mold closing method and a mold closing device of a forming mold, which aim to solve the technical problem that the mold closing efficiency of the forming mold in the prior art is low.
In order to achieve the above object, according to an aspect of the present invention, there is provided a mold clamping method of a molding die, including: obtaining a preset torque T of die assembly0(ii) a Acquiring a mold closing starting signal, closing the mold, and acquiring a real-time torque T in the mold closing process1And apply a real-time torque T1With a predetermined torque T0Comparing; according to real-time torque T1With a predetermined torque T0And adjusting the mold clamping speed in the mold clamping process according to the comparison result.
Further, according to the real-time torque T1With a predetermined torque T0The method for adjusting the magnitude of the mold clamping speed in the mold clamping process comprises the following steps: when T is1/T0When the mold closing speed is less than 1.1, the mold closing speed is controlled to be the first mold closing speed V1Carrying out die assembly; when T is1/T0When the mold closing speed is more than or equal to 1.1, controlling the first mold closing speed V2Carrying out die assembly; wherein, V1＞V2。
Further, the method for adjusting the magnitude of the mold clamping speed in the mold clamping process comprises the following steps: and a servo closed-loop system is adopted to adjust the mold closing speed in the mold closing process, and the servo closed-loop system is used for driving a template of the forming mold to perform mold closing operation.
Further, the method for adjusting the magnitude of the mold closing speed in the mold closing process by adopting the servo closed-loop system comprises the following steps: controlling the servo drive of the servo closed-loop system to apply a real-time torque T1Feeding back to the controller; using a controller to apply a real-time torque T1With a predetermined torque T0Comparing and transmitting the adjusting signal to the servo drive; and the servo drive is utilized to control a servo motor of the servo closed-loop system to adjust the rotating speed.
Further, before mold clamping is started, the mold clamping method further comprises the following steps: and acquiring the total stroke S of die assembly, and controlling the motion stroke of a template of the forming die to be equal to the total stroke of die assembly.
Further, mold closing is started, and real-time torque T in the mold closing process is detected1The method comprises the following steps: after the mold closing is started for a preset time, detecting a real-time moment T in the mold closing process1。
According to another aspect of the present invention, there is provided a molding apparatus including: the forming die adopts the die closing method of the forming die; and the control assembly is connected with the forming die so as to control the die assembly of the forming die through the control assembly.
Further, the control assembly includes: the controller is connected with the forming die and used for controlling the die closing speed of the forming die; the servo motor, the controller and the forming die are connected with the controller, so that the servo motor transmits the real-time torque to the controller.
Further, the control assembly further comprises: and the industrial field communication bus is arranged between the controller and the servo motor, so that the controller is connected with the servo motor through the industrial field communication bus.
Further, the control assembly further comprises: and the human-computer interaction structure is connected with the controller so as to transmit the set data on the human-computer interaction structure to the controller.
By applying the technical scheme of the invention, the real-time torque T can be conveniently obtained1With a predetermined torque T0The comparison result of the comparison results controls the mold closing speed so as to optimize the overall mold closing efficiency and reduce the impact on the mold. Preferably, when the value of the real-time torque is smaller than the value of the preset torque, the mold closing speed can be controlled to be higher, so that the mold can be closed quickly, and the mold closing speed is improved; when the value of the real-time moment is larger than the value of the preset moment, the mold closing speed can be controlled to be smaller, so that the impact on the mold is reduced, and the mold is effectively protected.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 shows a flow diagram of a mold clamping method provided according to an embodiment of the invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1, a first embodiment of the present invention provides a method for clamping a molding die, including: obtaining a preset torque T of die assembly0(ii) a Acquiring a mold closing starting signal, closing the mold, and acquiring a real-time torque T in the mold closing process1And apply a real-time torque T1With a predetermined torque T0Comparing; according to real-time torque T1With a predetermined torque T0And adjusting the mold clamping speed in the mold clamping process according to the comparison result. In addition, V is1And V2It refers to the rotational speed of the motor, not the end-effector speed of the motor.
By adopting the mold closing method provided by the embodiment, the mold closing method can be conveniently carried out according to the real-time torque T1With a predetermined torque T0The comparison result of the comparison result controls the magnitude of the mold closing speed so as to optimize the mold closingThe overall efficiency of the die is improved and the impact on the die is reduced. Preferably, when the value of the real-time torque is smaller than the value of the preset torque, the mold closing speed can be controlled to be higher, so that the mold can be closed quickly, and the mold closing speed is improved; when the value of the real-time moment is larger than the value of the preset moment, the mold closing speed can be controlled to be smaller, so that the impact on the mold is reduced, and the mold is effectively protected. In addition, the die closing method provided by the invention can also realize quick stroke of the forming die and improve the efficiency.
In the present embodiment, the real-time torque T is used1With a predetermined torque T0The method for adjusting the magnitude of the mold clamping speed in the mold clamping process comprises the following steps: when T is1/T0When the mold closing speed is less than 1.1, the mold closing speed is controlled to be the first mold closing speed V1Carrying out die assembly; when T is1/T0When the mold closing speed is more than or equal to 1.1, controlling the first mold closing speed V2Carrying out die assembly; wherein, V1＞V2. Specifically, under the condition of no external force, the real-time torque value fluctuates within 5%, so that the ratio of the real-time torque value to the real-time torque value is set to be about 1.1, which is a reasonable value.
By adopting the mold clamping method, when T is1/T0When the mold closing speed is less than 1.1, the mold closing speed is controlled to be the first mold closing speed V1Carrying out die assembly to realize quick stroke when the moment is small; when T is1/T0When the mold closing speed is more than or equal to 1.1, controlling the second mold closing speed V2And (5) carrying out die assembly to realize slow stroke when the torque is large. The mold closing method can realize rapid mold closing to improve mold closing efficiency when the torque is small, and can realize low speed to reduce impact on the mold when the torque is large.
Preferably, V may be set to optimize the device beat1Set to the rated speed of the motor. According to field debugging, V can be adjusted to optimize the beat under the condition of no mould impact2The adjustment is as large as possible.
In this embodiment, the method for adjusting the magnitude of the mold clamping speed in the mold clamping process includes: and a servo closed-loop system is adopted to adjust the mold closing speed in the mold closing process, and the servo closed-loop system is used for driving a template of the forming mold to perform mold closing operation. By adopting the method, the forming die can be conveniently controlled through the servo closed-loop system so as to conveniently control the die closing operation.
Specifically, the method for adjusting the magnitude of the mold closing speed in the mold closing process by adopting the servo closed-loop system comprises the following steps: controlling the servo drive of the servo closed-loop system to apply a real-time torque T1Feeding back to the controller; using a controller to apply a real-time torque T1With a predetermined torque T0Comparing and transmitting the adjusting signal to the servo drive; and the servo drive is utilized to control a servo motor of the servo closed-loop system to adjust the rotating speed. By adopting the method, the servo motor can be conveniently adjusted through the servo closed-loop system, so that the speed in the die closing process can be conveniently and adaptively adjusted.
Specifically, before mold closing is started, the mold closing method further includes: and acquiring the total stroke S of die assembly, and controlling the movement stroke of a template of the forming die to be the same as the total stroke of die assembly. By adopting the method, the smooth die assembly can be conveniently and effectively ensured.
In the embodiment, mold closing is started, and real-time torque T in the mold closing process is detected1The method comprises the following steps: after the mold closing is started for a preset time, detecting a real-time moment T in the mold closing process1. By adopting the method, the control process can be prevented from being influenced by misjudgment generated by larger moment during starting, and the reliability of action is improved. Specifically, the real-time torque may be fed back after 1 second.
In the control process in the embodiment, hardware needs to be used in a controller, the controller supports an EtherCat bus, a multi-turn absolute band-type brake servo system based on supporting an EtherCat bus type PLC, the rated torque and the rotor inertia of a servo motor meet the requirements of a mechanical structure, and a human-computer interaction interface is a touch screen.
Before the control process is started, the total stroke S and the rapid stroke speed V are set on the touch screen according to the pressure requirement required by the product1，V1Through the conversion of the transmission ratio, the rated rotating speed and the slow stroke speed V of the servo motor cannot be exceeded2Debugging and setting are carried out according to the actual condition of the die and the requirement of the whole die assembly time, and the touch screen reflects dataAnd transmitting the motion control variable to the PLC.
Starting a control process, preparing a servo, reading speed and travel variables input by the touch screen by the PLC, executing a speed motion control command, and controlling the speed at a speed V1And then, the servo execution speed mode carries out quick travel, the PLC is switched on to feed back the servo torque T after the servo operation mark is switched on for 1S, the larger torque is prevented from being misjudged during starting, and the current torque value is transmitted and stored in a data variable area to serve as a reference torque value during quick travel, so that the PLC adapts to different reference torque values during different product molds.
When the mold approaches, the servo feedback torque value gradually increases and exceeds the reference torque value T10%, the speed mode is stopped, the speed is reduced to stop, the PLC starts to execute an absolute value positioning instruction, the PLC reads the current position of the absolute value servo feedback, and the speed V is the speed2And then, carrying out a slow die assembly stroke until the total stroke S is completed, and completing die assembly.
According to another aspect of the present invention, there is provided a molding apparatus including a molding die and a control assembly, the molding die being adapted to the mold clamping method of the molding die provided above. The control assembly is connected with the forming die so as to control the die assembly of the forming die through the control assembly. By adopting the structure, the mold closing process of the forming mold can be controlled conveniently, so that the forming mold is protected conveniently.
In this embodiment, the control assembly comprises a controller and a servo motor, and the controller is connected with the forming die so as to control the die closing speed of the forming die through the controller. The controller and the forming die are connected with the controller, so that the servo motor transmits the real-time torque to the controller. With such a structure, the servo motor can be conveniently controlled by the controller.
Specifically, the control assembly further comprises an industrial field communication bus, and the industrial field communication bus is arranged between the controller and the servo motor so that the controller is connected with the servo motor through the industrial field communication bus. By adopting the structure, the transmission speed can be improved, so that the control accuracy is improved. Specifically, the controller is a bus type PLC supporting EherCat.
In this embodiment, the control assembly further includes a human-computer interaction structure, and the human-computer interaction structure is connected to the controller, so that the setting data on the human-computer interaction structure is transmitted to the controller. By adopting the structure, a user can conveniently control and adjust the controller in an adaptive manner through the man-machine interaction structure.
In this embodiment, the human-computer interaction structure is a touch screen, so as to facilitate the operation and adjustment of a user.
The invention is characterized in that: the servo closed-loop system is applied, the EtherCat bus is communicated with the controller, an external pressure sensor is not needed, the servo system feeds a torque value back to the controller, the controller enables the servo system to have a quick stroke during die assembly according to the torque, the speed is automatically reduced when the torque is large, the die assembly is carried out at a low speed, and the speed values of the servo system and the controller can be set by a human-computer interaction interface.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects: the controller communicates with the servo by using an EtherCat bus, and feeds back a torque value to the controller in real time at a high speed, so that the torque value reaches a quick stroke when the torque is small, the torque value is increased when the die is closed, the torque value is automatically switched to a slow stroke, the overall die closing efficiency is improved by 30%, and the impact on the die is reduced.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A mold clamping method for a molding die, comprising:
obtaining a preset torque T of die assembly0；
Acquiring a mold closing starting signal, closing the mold, and acquiring a real-time torque T in the mold closing process1And applying the real-time torque T1And the preset torque T0Comparing;
according to the real-time torque T1And the preset torque T0And adjusting the mold clamping speed in the mold clamping process according to the comparison result.
2. The method of closing a molding die according to claim 1, wherein the torque T is based on the real-time torque T1And the preset torque T0The method for adjusting the magnitude of the mold clamping speed in the mold clamping process comprises the following steps:
when T is1/T0When the mold closing speed is less than 1.1, the mold closing speed is controlled to be the first mold closing speed V1Carrying out die assembly;
when T is1/T0When the mold closing speed is more than or equal to 1.1, controlling the first mold closing speed V2Carrying out die assembly;
wherein, V1＞V2。
3. The mold clamping method for a molding die according to claim 1, wherein the method of adjusting the magnitude of the clamping speed during clamping comprises:
and adjusting the mold closing speed in the mold closing process by adopting a servo closed-loop system, wherein the servo closed-loop system is used for driving a template of the forming mold to perform mold closing operation.
4. The mold clamping method for a molding mold according to claim 3, wherein the method of adjusting the magnitude of the clamping speed during clamping using a servo closed loop system comprises:
controlling the servo drive of the servo closed-loop system to apply a real-time torque T1Feeding back to the controller;
using the controller to apply the real-time torque T1And the preset torque T0Comparing and transmitting an adjusting signal to the servo drive;
and controlling a servo motor of the servo closed-loop system to adjust the rotating speed by utilizing the servo drive.
5. The mold clamping method for a molding mold according to claim 1, wherein before the mold clamping is started, the mold clamping method further comprises:
and acquiring the total stroke S of die assembly, and controlling the motion stroke of a template of the forming die to be equal to the total stroke of die assembly.
6. The mold clamping method for molding molds according to claim 1, wherein the mold clamping is started, and a real-time torque T during the mold clamping is detected1The method comprises the following steps:
after the mold closing is started for a preset time, detecting a real-time moment T in the mold closing process1。
7. A molding apparatus, comprising:
a molding die that employs a mold clamping method of the molding die according to any one of claims 1 to 6;
and the control assembly is connected with the forming die so as to control the die assembly of the forming die through the control assembly.
8. The molding apparatus as defined in claim 7, wherein the control assembly includes:
the controller is connected with the forming die and used for controlling the die closing speed of the forming die;
the controller and the forming die are connected with the controller, so that the servo motor transmits the real-time torque to the controller.
9. The molding apparatus as defined in claim 8, wherein the control assembly further comprises:
and the industrial field communication bus is arranged between the controller and the servo motor so that the controller is connected with the servo motor through the industrial field communication bus.
10. The molding apparatus as defined in claim 8, wherein the control assembly further comprises:
and the human-computer interaction structure is connected with the controller so as to transmit the set data on the human-computer interaction structure to the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111676786.5A CN114318954B (en) | 2021-12-31 | 2021-12-31 | Mold clamping method for molding mold and molding apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111676786.5A CN114318954B (en) | 2021-12-31 | 2021-12-31 | Mold clamping method for molding mold and molding apparatus |
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| CN114318954A true CN114318954A (en) | 2022-04-12 |
| CN114318954B CN114318954B (en) | 2024-01-30 |
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| CN114318954B (en) | 2024-01-30 |
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